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| 1924 |
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| Britain, France, and Spain signed the Tangier convention, providing for permanent neutralization of the Tangier zone and government by international commission. | 1 |
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| 1925, Feb. 9 |
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| The German government proposed a Rhineland Mutual Security Pact. The British supported the idea as a replacement for the failed Geneva Protocol, and Aristide Briand, who became the French foreign minister in April 1925, accepted the suggestion on the condition that Germany join the League. | 2 |
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| Feb. 11, 19 |
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| International opium convention provided more effective control of production and trade in opium. | 3 |
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| June 17 |
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| Arms traffic convention dealing with international trade in arms and munitions. A protocol was signed that prohibited the use of poison gas. | 4 |
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